<!doctype html>
<html>
<head>
    <title>登录</title>
</head>
<body>
<form action="/loginCheck" method="post">
    用户名：<input type="text" name="username" required><br>
    密码：<input type="password" name="password" required><br>
    <input type="submit" value="登录">
</form>
</body>
</html>
